A good start, I enjoyed the short read. Now the challenge is to expand on the haunting. This could be a great sci-fi. I like the idea of a child who was killed in the attic before the family moved in. The ghost could have been with Juste all through his childhood, waiting for him in the attic.

Or it couldbe the ghost of a grandfather, yea I like that, I'm a Grandpa now.

The ghost could escape the house, threatening society, and only Juste could stop him. An epic battle could ensue.

Poor Yoko. -shakes head- Man, I feel kinda sorry for her. I mean, she goes through so much, but gets almost nothing out of it. That, and poor Juste, too. I guess he now knows how his ancestor felt around normal people. Keep-up with the excellent work on this story.